Home / 466,226,528.83-643,375,742.88-257,378,187.04

Finding the Fourth Proportional to 466,226,528.83, 643,375,742.88 and 257,378,187.04

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Solution

The fourth proportional to 466,226,528.83, 643,375,742.88 and 257,378,187.04 is: 355,172,586.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,226,528.83 : 643,375,742.88 = 257,378,187.04 : x
  2. Step 2: Convert to fraction form
    466,226,528.83/643,375,742.88 = 257,378,187.04/x
  3. Step 3: Cross multiply
    466,226,528.83x = 643,375,742.88 × 257,378,187.04
  4. Step 4: Simplify right side
    466,226,528.83x = 165,590,882,287,967,584
  5. Step 5: Solve for x
    x = 165,590,882,287,967,584/466,226,528.83
  6. Step 6: Final answer
    x = 355,172,586.82

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.